net/mlx5e: Use extack in set ringparams callback

In case of errors in set ringparams, reflect it through extack instead
of a dmesg print.
While at it, make the messages more human friendly and remove two
redundant checks that are already validated by the core.
Signed-off-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20240808055927.2059700-7-tariqt@nvidia.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/mellanox/mlx5/core/en.h

@@ -1172,7 +1172,8 @@ void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv,
 				 struct ethtool_ringparam *param,
 				 struct kernel_ethtool_ringparam *kernel_param);
 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
-				struct ethtool_ringparam *param);
+				struct ethtool_ringparam *param,
+				struct netlink_ext_ack *extack);
 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,
 				struct ethtool_channels *ch);
 int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,

drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c

@@ -352,35 +352,25 @@ static void mlx5e_get_ringparam(struct net_device *dev,
 }
 
 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
-				struct ethtool_ringparam *param)
+				struct ethtool_ringparam *param,
+				struct netlink_ext_ack *extack)
 {
 	struct mlx5e_params new_params;
 	u8 log_rq_size;
 	u8 log_sq_size;
 	int err = 0;
 
-	if (param->rx_jumbo_pending) {
-		netdev_info(priv->netdev, "%s: rx_jumbo_pending not supported\n",
-			    __func__);
-		return -EINVAL;
-	}
-	if (param->rx_mini_pending) {
-		netdev_info(priv->netdev, "%s: rx_mini_pending not supported\n",
-			    __func__);
-		return -EINVAL;
-	}
-
 	if (param->rx_pending < (1 << MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE)) {
-		netdev_info(priv->netdev, "%s: rx_pending (%d) < min (%d)\n",
-			    __func__, param->rx_pending,
-			    1 << MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE);
+		NL_SET_ERR_MSG_FMT_MOD(extack, "rx (%d) < min (%d)",
+				       param->rx_pending,
+				       1 << MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE);
 		return -EINVAL;
 	}
 
 	if (param->tx_pending < (1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)) {
-		netdev_info(priv->netdev, "%s: tx_pending (%d) < min (%d)\n",
-			    __func__, param->tx_pending,
-			    1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE);
+		NL_SET_ERR_MSG_FMT_MOD(extack, "tx (%d) < min (%d)",
+				       param->tx_pending,
+				       1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE);
 		return -EINVAL;
 	}
 
@@ -416,7 +406,7 @@ static int mlx5e_set_ringparam(struct net_device *dev,
 {
 	struct mlx5e_priv *priv = netdev_priv(dev);
 
-	return mlx5e_ethtool_set_ringparam(priv, param);
+	return mlx5e_ethtool_set_ringparam(priv, param, extack);
 }
 
 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

@@ -360,7 +360,7 @@ mlx5e_rep_set_ringparam(struct net_device *dev,
 {
 	struct mlx5e_priv *priv = netdev_priv(dev);
 
-	return mlx5e_ethtool_set_ringparam(priv, param);
+	return mlx5e_ethtool_set_ringparam(priv, param, extack);
 }
 
 static void mlx5e_rep_get_channels(struct net_device *dev,

drivers/net/ethernet/mellanox/mlx5/core/ipoib/ethtool.c

@@ -74,7 +74,7 @@ static int mlx5i_set_ringparam(struct net_device *dev,
 {
 	struct mlx5e_priv *priv = mlx5i_epriv(dev);
 
-	return mlx5e_ethtool_set_ringparam(priv, param);
+	return mlx5e_ethtool_set_ringparam(priv, param, extack);
 }
 
 static void mlx5i_get_ringparam(struct net_device *dev,